关键词: 数控抛光, 柱形磨头, 叶片型面, 抛光轨迹规划, 编程

Abstract: To achieve blade surface Numerical Control(NC)Polishing of blisk,NC polishing path planing and programming of blade surface for open blisk was researched based on five-axis NC polishing machine.According to the analysis of multi-axis CNC polishing system and manual polishing process in blisk manufacturing,the method of path planning for polishing was proposed and the blade surface was fixed by segmented ruled surface.Thus the straight generatrix of segmented ruled surface could be directly used as the cutter path.The polishing method was verified on NC polishing machine.The experiments showed that the automatic mechanical polishing for blisk was achieved,the automatic polishing efficiency was increased significantly and the performance and reliability of aero-engine were also improved.

Key words: numerical control polishing, cylindrical grinding head, blade surface, polishing path planning, programming